Set of headphones and battery pack



FIG. 1 is a perspective view of a set of headphones with a control module and battery pack as seen from the front, bottom, and left side;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top end view thereof;

FIG. 7 is a bottom end view thereof; and,

FIG. 8 is a detailed perspective view of the headphones of FIGS. 1 through 7 as seen from the front, bottom, and left side.

The dotted line portions of the drawings represent environmental structure only and do not form part of the claimed design. 

CLAIM The ornamental design for a set of headphones and battery pack, substantially as shown and described. 